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Question

Construct a trapezium ABCD with dimesions: AB=6cm,AD=4cm,CD=3cm, DAB=90o, and ABCD. Find the area of the trapezium ABCD (in sq. cm).

A
18
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B
16
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C
20
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D
None of these
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Solution

The correct option is C 18

Draw a line segment AB=6cm
Construct an angle of 90 at point A
Cut off AD=4cm
Draw a horizontal line through D
Cut off CD=3cm
Join BC
Let a=3cm,b=6cm and h=4cm
Area of trapezium ABCD =a+b2h=3+62×4
Area of trapezium ABCD = 18cm2

824483_584725_ans_56d0c33943f747c185f2d426e99fbe6d.png

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